. Industrial gas calorimetry.. Industrial Gas Calorimetry 7 II. LABORATORY 3 EQUIPMENTGAS SUPPLY There was available for this investigation a 5 cubic-foot meterprover, which was used as a gas tank for drawTing from the labora-tory gas mains samples of the gas to be used in testing the calorim-eters and similarly for holding the samples of natural gas andof hydrogen used in intercomparing the different calorimeters. The gas connections used will be understood by reference toFig. 2. Gas from the mains passes through the pressure regulatorA, the meter B, the three-way stopcock C, another regulato
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. Industrial gas calorimetry.. Industrial Gas Calorimetry 7 II. LABORATORY 3 EQUIPMENTGAS SUPPLY There was available for this investigation a 5 cubic-foot meterprover, which was used as a gas tank for drawTing from the labora-tory gas mains samples of the gas to be used in testing the calorim-eters and similarly for holding the samples of natural gas andof hydrogen used in intercomparing the different calorimeters. The gas connections used will be understood by reference toFig. 2. Gas from the mains passes through the pressure regulatorA, the meter B, the three-way stopcock C, another regulator D, and to the burner in the calorimeter. An unlimited supply ofgas, of approximately the same heating value as that in the holder, was thus available for bringing the calorimeter to equilibrium, GAS WAIN. Fig. 2.—Diagram of gas connections adjusting the rate of gas consumption, etc. When a test was tobe made the three-way stopcock was turned, causing the gas toflow from the gas holder through the testing meter B to theburner. With this arrangement as many as 12 separate deter-minations of heating value could be made with one holder full ofgas, and the conditions between tests could be varied as desired.Further, during such a series of determinations, only the amountof gas used in the tests was passed through the testing meter, thereby diminishing the possibility of change in the water levelin the meter during the experiments. In any such series ofdeterminations the last tests were made under conditions identicalwith the first tests, so as to determine whether any changes hadtaken place during the series, as, for example, a change in theheating value of the gas drawn from the holder. 1A general view of the laboratory is shown in Fig. i. 8 Technologic Papers of the Bureau of Standards C